Data from: Cation effects on phosphatidic acid monolayers at various pH conditions
Methods
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Scope And Content | A file (.docx) detailing the materials, sample preparation, instrumental methods, and contact info. |
Manuscript Data
Scope And Content | Data for figures in main text of paper. |
Readme
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Scope And Content | A readme file (.txt) explaining the data and organization for the numeric data (.csv) files. |
Numeric Data
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Scope And Content | All data is available in comma delimited text files (.csv), organized in columns, with column headers in the first 3 rows. Data includes DPPA isotherms and mean molecular areas. |
Image Data
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Scope And Content | BAM images are saved in a powerpoint slide (.pptx). |
SI Data
Scope And Content | Data presented in supporting information of paper. |
Readme
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Scope And Content | A readme file (.txt) explaining the data and organization for the numeric data (.csv) files. |
Numeric Data
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Scope And Content | All data is available in comma delimited text files (.csv), organized in columns, with column headers in the first 3 rows. |
- Collection
- Cite This Work
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Zhang, Ting; Cathcart, Matthew G.; Vidalis, Andrew S.; Allen, Heather C. (2017). Data from: Cation effects on phosphatidic acid monolayers at various pH conditions. In Center for Aerosol Impacts on Chemistry of the Environment (CAICE). UC San Diego Library Digital Collections. https://doi.org/10.6075/J0P26W9D
- Description
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Publication Abstract: The impact of pH and cations on phase behavior, stability, and surface morphology for dipalmitoyl- phosphatidic acid (DPPA) monolayers was investigated. At pH < 10, DPPA monolayers on water are predomitly populated by neutral species and display the highest packing density. Cations are found to expand and stabilize the monolayer in the following order of increasing magnitude at pH 5.6: Na+ > K+ ≈ Mg2+ > Ca2+. Additionally, cation complexation is tied to the pH and protonation state of DPPA, which are the primary factors controlling the monolayer surface behavior. The binding affinity of cations to the headgroup and thus deprotonation capability of the cation, ranked in the order of Ca2+ > Mg2+ > Na+> K+, is found to be well explained by the law of matching water affinities. Nucleation of surface 3D lipid structures is observed from Ca2+, Mg2+, and Na+, but not from K+, consistent with the lowest binding affinity of K+. Unraveling cation and pH effects on DPPA monolayers is useful in further understanding the surface properties of complex systems such as organic-coated marine aerosols where organic films are directly influenced by the pH and ionic composition of the underlying aqueous phase.
- Scope And Content
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This package contains methods, data, and explanatory readme files to reproduce all figures from the main manuscript and supporting information for “Cation effects on phosphatidic acid monolayers at various pH conditions”.
- Creation Date
- Time period of project: 2014 to 2014
- Date Issued
- 2017
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- Authors
- Principal Investigator
- Topics
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- Related Resources
- Zhang, T.; Cathcart, M. G.; Vidalis, A. S.; Allen, H. C. Cation effects on phosphatidic acid monolayers at various pH conditions. Chem. Phys. Lipids. (2016). 200, 24–31. https://doi.org/10.1016/j.chemphyslip.2016.06.001
- Alternate project file location: https://doi.org/10.4246/caice-tzhang_hallen_cpl2016_20170512_tzhang_hallen_cpl2016md54c8ed4c0a3be5d9b34240be3885c9a44.zip
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Creative Commons Attribution 4.0 International Public License
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- UC Regents
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Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp )
- Last Modified
2023-05-22